Rawhide bushing.



No. 784,524. PATENTED MAR. '7, 1905.

F. LATULIP.

RAWHIDE BUSHING.

APPLICATION FILED JULY 2,1904.

WITNESSES. 1 6' mg.

NC. 784,5Q4i.

NITED STATES fatented IVIarch '7, 1905.

PATENT OEEIcE.

FRED LATULIP, OF SYRACUSE, NEW YORK, ASSIGNOR TO SYRACUSE RAWVHIDEMANUFACTURING COMPANY, OF SYRACUSE, NEW YORK,

A CORPORATION OF NE\V YORK.

RAWHIDE BUSHING.

SPECIFICATION forming part of Letters Patent No. 784,524, dated March 7,1905.

Application filed July 2, 1904. Serial No. 215,104.

To all whom it may concern.-

Be it known that I, FRED LATULIP, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Rawhide Bushings, of which the following, taken inconnection withthe accompanying drawings, is a full, clear, and exactdescription.

This invention relates to improvements in rawhide bushings to be used asself-lubricating bearings for shafts, loose pulleys, and for analogoususes.

My object is to avoid excessive waste of time, labor, and material inthe construction of the bushing by making said bushing from a continuoussheet of rawhide which is creased or scored in parallel lines and atregular intervals, and the adjacent intervening portions are folded uponand adhesively secured to each other.

Other objects and uses will appear in the following description.

In the drawings, Figure 1 is a perspective view of my improved bushing.Fig. 2 is a perspective view of a portion of the crimped or corrugatedsheet of rawhide from which the bushing is formed. Fig. 3 is an end viewof the bushing, shown as partly formed in full lines and the remainingportions or ends extended.

Similar reference characters indicate corresponding parts in all theviews.

In forming a completed or finished bushing, as A, a strip, as a, is outfrom the hide of such width as to correspond as nearly as possible tothe length of bushing required and of sufficient length, if possible, toform the entire circumferential wall of said bushing without break. Thisstrip is then creased or scored in transverse lines parallel with theaxisof the bushing and at'such intervals as to form two or more seriesof folds or corrugations, as 1 and 2, those of one series, as 1, beingof greater depth than and alternating with the folds or corrugations 2of the other series. These folds 1 determine the thickness of the wallsof the bushing, and the folds 2 are united to and are interposed betweenthe adjacent sides of the folds 1 near their outer edges, so that whenthe folds of both series are pressed together the inner edges of theadjacent folds 1 are in contact, while the outer edges of said adjacentfolds 1 are held apart by the folds 2, which causes the compressed sheetor strip to assume a cylindrical form. Either before or during theoperation of compression an adhesive, as glue, is applied to thecontiguous faces of the sides of the folds, so that when said folds orcorrugations are subjected to pressure their sides will be adhesivelysecured together, and after the adhesive is allowed to set the sleeve isplaced upon a suitable mandrel and trued up and finished to the requiredsize.

These bushings are gathered upon a suitable form, such as a shaft ofsuch diameter as may be required for the inner diameter of the bushing,in which instance an outer case or form may be used to keep the folds inplace while being pressed together.

The method or means employed in forming these bushings forms no part ofmy present invention, and therefore it is unnecessary to illustrate anymeans for this purpose.

It will be seen that this bushing may be formed without waste andwithout destroying the integrity and natural tenacity of the hide. It ispreferable to use a continuous strip when possible; but for the largerbushing s a series of strips may be adhesively secured together end toend and folded in the manner described.

In some instances it may be necessary to place two or more of the deeperor shallower folds together or to deepen the shallower folds or tolessen the depth of the deeper folds in order to give the best resultsfor various diameters of bushings, and I do not wish to limit myself tothe alternate arrangement of single folds of each series.

Having described my invention, what I claim, and desire to secure byLetters Patent, is I 1. A shaft or pulley bushing consisting of a sheetor strip of rawhide gathered into a 5 series of folds adhesively securedtogether.

2. In a bushing for the purpose described, 4. A bushing consisting of astrip of rawa strip or sheet of rawhide gathered into a hide gatheredinto folds and forming a cylseries of folds arranged face to face in theinder, the folds being adhesively secured toform of a cylinder andadhesively secured gether. r 5

5 together. In witness whereof I have hereunto set my 3. A bushinconsisting of a strip of rawhand on this 21st day of June, 1904. hideathered into folds and forming a cy inder? some of the folds being ofless depth FRED LATULIP' than others to compensate for differences be-Witnesses: I 10 tween the inner and outer diameters of the H. E. CHASE,

bushing. HOWARD P. DENISON.

